CPI(M) today termed AAP government's move to introduce Jan Lokpal Bill in Delhi Assembly as "erroneous and inexpedient" and said this had provided BJP and Congress the opportunity to gang up against them, leading to the resignation of Chief Minister Arvind Kejriwal.

Observing that the AAP government was "committed" to pass the Jan Lokpal Bill which would have been "an important measure to fight corruption in public life in Delhi," the party Politburo said "however, the manner in which this was introduced in the Assembly was politically erroneous and inexpedient."

"By not going through the procedure for the permission of the Lt Governor to introduce the Bill, the AAP tactics provided the opportunity for the BJP and Congress to gang up to thwart this measure in the Assembly leading to the resignation of Kejriwal," the CPI(M) said.

In a statement, the CPI charged the BJP and Congress with collusion as they were "worried about the inquires in the corruption cases of their leaders while in the government."

"Both the parties by joining hands tried to put an end to the 49-day old government of AAP. It exposed the shameless opportunism of both the parties who are visibly angry with the FIRs filed by Delhi Government on Mukesh Ambani and others."

It said the entire political development "reveals the collusion of the BJP and Congress."

The party Central Secretariat said "a clear mandate is necessary" for Delhi by accepting the recommendation of the outgoing government for dissolution of the assembly and ordering of fresh election.